A new baby is not easy! Don't be hard on yourself. If you're happy with how things are going - routine or no routine, that's great.
DD (now 4 1/2) was a nightmare! She was just horrendous when she was hungry, so grouchy when she was tired, like a wailing banshee all day every day.
I've got to say, I could not have lived through DD without Gina Ford. I had no idea where to start looking after a baby. I had no close family or friends with recent baby experience and, as I've said, DD was a baptism of fire! I really felt out of my depth and I needed to know what I was supposed to DO about this baby thing I'd got! DD really responded to the routine, as did I. We didn't follow GF's schedule exactly (I can see how she freaks people out!) but I used it as a template for my own routine and it really worked for me. Her timings did work out roughly right for DD though. I mingled it with Tracy Hogg's Baby Whisperer advice. She doesn't give set times etc, but she suggests the EASY routine. Eat, Activity, Sleep, You Time. Mine never worked that way. Mine was more of a ESAY routine! But having a routine meant I knew when I could expect DD to be hungry, tired etc. It made it a lot easier to define what a particular bout of crying required! Although I'm a SUCH chaotic person, DD ran like a German train timetable and it really worked for us!
Basically, it worked for us by having a little rolling routine during the day. At first it was short - a couple of hours from sleep to sleep. I think, from about a month, she was having 3 or 4 naps a day, and it gradually dropped down to 1 midday nap as she got older.
She was breastfed but I didn't stress if I ended up supplementing her with a bottle (and consequently I continued to bf her until she was about 14 months).
Find something that works for you as long as you're happy and baby's happy (and DH isn't too unhappy!) then go for it.
My day used to be something like: get up, feed the baby, cuddle, bouncy chair, mat with toy, whatever, while I sorted the breakfast stuff out. Feed again, nap, sit in the bouncy chair watching Baby TV while I got a shower (my chair was a Baby Bjorn Babysitter which is just the best thing I've ever bought - they just can't get out/fall out of it. DS is 2 and I can still sit him safely in it now, watching Night Garden while I get a shower!) It would continue on through the day. I'd even try to work it out so that, if we were going out, we'd be driving at a nap time so she could nap at the right time. Sounds horrendously regimented, but it wasn't - it was actually much easier than not having a routine.
DS (now 2) was much easier. We followed similar lines, but I didn't have to be as strict about it with him. He'd just drop off to sleep if he got tired whereas DD would stay awake until she was totally frazzled and then be completely unable to get herself off, which was a nightmare.
Neither of mine slept through until they were over a year. Both sleep like logs now. I've always kept a bedtime routine: tea, bath, bottle, bed and it seems to have worked quite well for both of mine.
I think it's a great idea to ask other mums what they do, and even read the dreaded 'manuals' if you get time. You don't have to agree with any of the advice! But it's quite useful to be aware of it, I think.